Rotary pump.



0. A. DESPAINI.

ROTARY PUMP.

APPLIGATIOH FILED JAN, 21, mm

Paten'tad Ea 2 SHEETSSHEET 1.

wawg Mm m 0; A. DESPAIN.

ROTARY PUMP. AYPLTGATION FILED JAN. 21, 1914- =1,15,9L Patented Jan. 19, 1915.

2 SHEETS-SHEET 2.

through as seen on line 3 is 4 lne one side thereof open.

a. DESIAIN. or WASHINGTON, .ASSIGNOR 'ro w n Cl'lZ-lPB-Iii SPGKANE. "WASHINGTON. 1

EG'EELRY Snecification of Letters Eatenti l-aienied Jan. i9. W2

"new and useful In'iprovements in Rotary Pumps, oj-f which the following is a speoid ration, reference being bad to (he accompanying drawings.

This invention relates to certain improvw lllQIlllS in rotary pumps; and the object or" the invention is to provide a device of this.

general character having novel and i1nproved means whereby the rotor, included therein, may be operated wiah convenience sand facility.

A further object of the invention resides in providingn device of this character in which the blades thereof are arranged on the rotor in an in'iproved manner whereby togive the best results with a simple and inexpensive construction.

Still another-object, oi the invention resides in prog'iding a device which is simple and durable in construoiion. inexpensive in manufacture and one which will be rer v efficient and useful in operation.

With these and other objects in view, rho invent-ion consists in the novel features of construct-ion; combination and arrangementof parts as will behereinafter referred to and more particularly pointed out in be specification and claims.

In the accompanying drawings forn part oi this application, Figure ticel longitudinal section lhrough :i constructed in accordance with my tion. l ig. 2 is a transverse 'clle removed. Fig. l. in a front elevation ol an end elevation of one of some. Fig". 'fix an elevation of an the blades used in the device. lg. '01s side eleva'tion thereof; and Fi 7 is a simi'zr view of another of the blades.

in describing my invention. 1 shall. refer to the drawings in which similar referenc characters designate (-orrespowiing parts l'hroughou'z the several views and in which i indicaies the main bod or homing of a pump wipporled on the le s 2 and bovin idle rear wall oi the housing or casing is provided with reexteosion 3 in which ie a ventral opening -land formed on the order l'a iof the cxleneion 3. an annular flange m vv'llll'll lfi adapted to iie applied a packing so as to lorm an oil-proof bearing for a purpose to be hereinafter and more parliamlarl}; described. The periphery of [he hous mg or easing l provided with an inlet 6. and a discharge o iening T is provided in the peripher a short distanc from the opening: L3 therein. The housing or casing i 15 also oilrsel somewhat. as hown at 5 ul- 1 point therein which is direclvd toward the dierhargc opening 2' so as to allford a complete discharge channel there as will be soon from the following description.

i have provided a rotor for coopcralion with Ehc casing. the same comprising a corn lral shall 9 which extends through the open mg l in the wall of the extension 3 and through the oil-proof bearing formed by the packing in the annular flange 5. A gland or the like is also provided in connection with rhisbearing to retain the backing in place and provide a positive oil-broof bearmg at this point. The main portion of the rofior ronsists of a drum-like member 10. one side wall of which is open and formed on the rcmaining wall. thereof is a hub-like member ll which is received'in the recess of 4 the projevtion I to rotate in the latter. The shaft 2 extends throi'igh a bore in this portion ll and is keyed to the latter, whereby said rotor prolnzrmay rotate with the shaft- 9. A disk-like member having ll central opening therein or what may be termed an annulus 12. is applied to the open side of die (ll'lllll-llli? rotor 10. the same being removablv secured by means of screws l3 to the peripheral edge of said member id. as clearly shown in Fig. '2 of the drawings. The perQJher); off this drunnlilie member l provided at regular intervals with slois 3 ll through which are slidably disposed the lades l5. l orrned on the inner wall oi Che i the inner wall of the periphery of the mean her 1, while the side edges of the blades contact with the side walls thereof.

It must be here stated that the shaft 9, while extending centrally through the drumlike rotor 10, is disposed eccentricallythrough the main housing or casing 1 and in view of this construction, it willbe seen that in order to permit the outer ends of the blades to constantly contact with the inner wall of the periphery of the member 1, a means must be provided for the actuation of said blades during the rotation of the rotor in said casing or housing 1. I have pro vided for this actuation ofthe blades and, to this end, each blade is provided with a shank portion or the like 17 and each shank has an elongated closed loop or eye 18 formed thereon, the same extending vin a plane at right angles to the planeof the faces of the blade proper. The shaft 9 extends through these closed loopsor elongated eyes 18 and does not contact with the same, as will be seen from the following description. It must be stated, however, that the shanks 17 of the blades 15 are not formed on the blades in the same position thereon. The one blade has the shank 17 formed centrally thereof; a second blade has the shank formed at the one side edge thereof, while the other blade has the shank 17 formed at i the opposite side ed e of the same. In this manner, the closed oops or elongated eyes 18 may be brought in actual contact with one another and all of the blades 15 properly disposed through the slots 14 in the periphery of the rotor 10. In other words, the shanks are properly offset with respect to one another and with respect to the blades carrying the same, so as to permit said shanks to be brought into contact with one another and, at the same time, permit the blades to be operatively disposed in their pro er positions in the rotor.

.he outer head or cap blade 19 is provided for application to the open end of he housing or casing 1, the same being slightly enlarged, as shown at 20 to be entered in the central enlarged opening of the'member 12. The shaft 9, of course, passesthrou h a central opening in this member 19 an ing 21 is provided on the outer face of this member to properly receive the shaft therein. Also formed on the inner face of the portion 20 of said member 19, is a boss 22, which is received in the 100 s or elongated eyes 18 of the blades 15. he shaft 9 extends through this portion 22 but eccentric with res ect thereto and the periphery of the mem er 22 is covered with a wear sleeve 23. It will be seen from this construction that as the rotor is caused to rotate in the housin or casin 1, the blades will be rotated t erewith ut in view of their connection with this boss 22, said blades will a bear? manufacture and one which will be reciprocaled in the slots at the mo.

the latter is rotated. The "ports are. ii ranged in such relation. to one another, how ever, that the blades 15 will be drawn inwardly when approaching the upper porti on of the housing or casing. This is necessary in view of the eccentric disposition of the rotorinthe casing 1.

In the operation of the device, assuming that the saineis completely set up for use, a i

and'the'fiuid directed thereagainst will if a positive wall or resisting member. As the pressure against this Wall or resisting member increases, the rotor will obviously be revolved and the fluid carried .npwardly therewith toward the discharge opening. In the rotation of the rotor, the blades approaching the dischar e opening are adapted to be forced inward yand at points ed111- cent the inlet 0 ning, said blades are ada ed to be force outwardly, such action ing capable in view of the connection be tween theboss 22 and the-elongated ribs or eyes 18 engaged with said boss. As there'- tor continues in its operation the fluid enter ing the opening 6 and causing the rotation. of the rotor will be directed upwardly around the rotor and discharged through the opening 7. This operation may be continued and the power applied to the shaft 9 may be transmitted for the operation of any desired device (not shown). Should for any reason whatsoever it is desired to re-- move a blade or any number of the blades 15, it is only necessary to remove the outside cap blade 19 and the annulus or disk-like member 12. By the removal of these members 12 and 19, any one or all of the blades 15 Iii may be removedfrom the shaft 9 and re placed by others, if desired, without the entire removal of the rubber from bar 1. I

From the foregoing it will be seen that I have rovided a device which is simple and durab e in construction, inox "V0 to cient and useful in operation, and'while I have articularly described the elements best a apted to perform the functions set forth, it' is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the irit or sacrificing any of the principles of t e invention.

Havin thus described this invention, what I c aim is 1 1. A rotary pump of the class described the memcomprising a housing havinglinlet and outi let openings therein,

one we of said housing being provided with a boss, a hollow rotor arranged in said housing to rotate eccentrically therein, a plurality of blades carried on the rotor and movable inwardly and outwardly with respect thereto, said blades being designed to contact with the walls of the housing, inwardly directed spaced lugs carried by the rotor and between'which the blades are directed, means formed on said blades designed to coiiperate with the boss on the one wall of the housing to actuate said blades inwardly and outwardly as the rotor revolves in the housing.

2. A rotary pump of the class described comprising a housing of substantially cylindrical design having inlet and outlet openings therein, one wall of said housing being provided with a boss disposed within the interior thereof, a rotor of drum-like design arranged to rotate eccentrically within the housing, a plurality of blades carried by the rotor and adapted to slide inwardly and out wardly through the periphery thereof to contact with the walls of the housing, inwardly'directed spaced lugs carried by the rotor and between which the blades are directed, and elongated loops formed on the inner ends of the blades disposed within the rotor to coiiperatewith a boss on the one wall of the housing, whereby to actuate said revolves in the housing. 1

blades inwardly and outwardly as said rotor comprising a housing of substantially cylindrical design having inlet and outlet openings therein, one wall of said housing being provided with a boss disposed within the interior of said housing, a rotor of drum-like design arranged to rotate eccentric-ally within. the housing, the periphery of said rotor being provided with slots, blades arranged to slide through the slots ofsaid rotor designed to contact with the walls of the housing, inwardly directed spaced lugs carried by the rotor and between which the blades are directed, and elongated loop members formed on the inner ends of said blades within the rotor and receiving said boss therein, whereby to actuate said blades inwardly and outwardly with respect to the rotor as the latter revolves in the housing.

4. Inarotary pump of the class described,

the combinatiorfmtha substantially cylinshaft rotatably mounted in the walls of the housing and keyed to the projection of the drum-like body of the rotor, a plurality of blades slidably disposed through the slots in the periphery of the body of the rotor and designed to contact with the walls of'tlio housing, inwardly directed spaced lugs carried bythe rotor and between whichothe blades are directed, and elongated loops formed on the inner ends ofsaid blades and receiving the shaft and the aforesaid boss with the loops of the blades causing the latter to be disposedinwardly and outwardly with respect to the rotor as the latter is revolved in the housing.

Intestimony whereof I hereunto affix my signature in the presence of two witnesses.

CHARLES} -A. DESPAlN.

"Witnesses:

. H. HADLEY, W. E. Tnonr.

, i therethrough, the engagement of the boss 8. A rotary pump of the class described 

